The track sections join together well (there are lugs to fix them) if you use a plastic glue like humbrol or GW (the sort that melts the plastic). After a bit of trial and error I found the easiest way was make the track and push the road wheel unit on from the back. That way you can glue the road wheels in place when they are flush with the inside edge of the tracks.As to size, the Battlefront T 34 is a few mm longer and a couple wider. I can't see you would see much difference on the table.Second time around I think I would glue a penny inside the hull unit before fixing the two parts, to give weight.The overall detail is better than on metal models, as you would expect. Being plastic, conversions to 57mm gun tank destroyers etc should be a doddle.